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| <a name="Modula_002d2-Type-and-Range-Checks"></a> |
| <h4 class="subsubsection">15.4.8.7 Modula-2 Type and Range Checks</h4> |
| <a name="index-Modula_002d2-checks"></a> |
| |
| <blockquote> |
| <p><em>Warning:</em> in this release, <small>GDB</small> does not yet perform type or |
| range checking. |
| </p></blockquote> |
| |
| <p><small>GDB</small> considers two Modula-2 variables type equivalent if: |
| </p> |
| <ul> |
| <li> They are of types that have been declared equivalent via a <code>TYPE |
| <var>t1</var> = <var>t2</var></code> statement |
| |
| </li><li> They have been declared on the same line. (Note: This is true of the |
| <small>GNU</small> Modula-2 compiler, but it may not be true of other compilers.) |
| </li></ul> |
| |
| <p>As long as type checking is enabled, any attempt to combine variables |
| whose types are not equivalent is an error. |
| </p> |
| <p>Range checking is done on all mathematical operations, assignment, array |
| index bounds, and all built-in functions and procedures. |
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